Has anyone had any success using an MPC8245 and a Philips PCF8563 real time clock in linux? Everything works in U-Boot but I can not get everything working in linux.
I am using the MPC8245 I2C drivers from: http://www.humboldt.co.uk/mpc10xi2c.html and I am using the PCF8563 drivers from the CVS DENX Linux kernel. I know I2C works in linux because the two LM75 temperature sensors on the board work. However the PCF8563 driver does not work. I have debugging turned on for both the i2c-adap-mpc10x and pcf8563 kernel modules and I get output that looks like this: rtc_rd(): i2c transfer error i2c-adap-mpc10x.c: Doing write 1 bytes to 0x51 - 1 of 2 messages i2c-adap-mpc10x.c: Doing read 1 bytes to 0x51 - 2 of 2 messages rtc_rd(): i2c transfer error Alarms: wday: ff day: ff hour: ff min: ff PCF8563 RTC Low Voltage - date/time not reliable get rtc [dec] year=2165 mon=25 day=45 hour=45 min=85 sec=85 Set System Time from RTC Time: 1925913489 RTC installed, minor 135 i2c-adap-mpc10x.c: Doing write 1 bytes to 0x51 - 1 of 2 messages i2c-adap-mpc10x.c: Doing read 1 bytes to 0x51 - 2 of 2 messages rtc_rd(): i2c transfer error PCF8563 RTC Low Voltage - date/time not reliable i2c-adap-mpc10x.c: Doing write 2 bytes to 0x51 - 1 of 1 messages rtc_wr(): i2c transfer error i2c-adap-mpc10x.c: Doing write 2 bytes to 0x51 - 1 of 1 messages rtc_wr(): i2c transfer error i2c-adap-mpc10x.c: Doing write 2 bytes to 0x51 - 1 of 1 messages rtc_wr(): i2c transfer error i2c-adap-mpc10x.c: Doing write 1 bytes to 0x51 - 1 of 2 messages i2c-adap-mpc10x.c: Doing read 1 bytes to 0x51 - 2 of 2 messages rtc_rd(): i2c transfer error Obviously it has a transfer error, but I am curious if anyone has any experiences with the same situation. Anyone have any ideas? Thanks, Matthew ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
